42633427 has 4 divisors (see below), whose sum is σ = 42646536. Its totient is φ = 42620320.

The previous prime is 42633419. The next prime is 42633443. The reversal of 42633427 is 72433624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42633427 - 2³ = 42633419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42633457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2427 + ... + 9547.

It is an arithmetic number, because the mean of its divisors is an integer number (10661634).

Almost surely, 2^42633427 is an apocalyptic number.

42633427 is a deficient number, since it is larger than the sum of its proper divisors (13109).

42633427 is an equidigital number, since it uses as much as digits as its factorization.

42633427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13108.

The product of its digits is 24192, while the sum is 31.

The square root of 42633427 is about 6529.4277697207. The cubic root of 42633427 is about 349.3414200591.

The spelling of 42633427 in words is "forty-two million, six hundred thirty-three thousand, four hundred twenty-seven".